Siding material



Dec. '15, 1936.

L. KIRSCHBRAUN SIDING MATERIAL Filed Dec. 16, 1931 ,5 Sheets-Sheet 1INVEN 0R.

ATTORNEY? 1936- L. KIRSCHBRAUN 2,063,935

SIDING MATERIAL Filed Dec. 16, 1931 3 Sheets-Sheet 2 BY (AW,

ATTORNEYS Dec. 15, 1936. L, KIR HBM N 2,063,935

S IDING MATERIAL Filed Dec. 16, 1931 s Sheets-Sheet 3 IN V EN TOR.ki'nrezaw BY Unlw, 3mm,

A TTORNEYJ Patented Dec. 15, 1936 new smmc mrnamr.

Lester Kirschbraun, Leonia, N. J., assignor to The Patent andIdcensingllorporation, Boston, Mass., a corporation of MassachusettsApplication December 16, 1931, Serial No. 581,336

7 Claims.

with wear-resisting material similar to the wellknown asphalt roofingstrips. These strips are applied in a series of overlapping courses tosim- 15 ulate brick or other siding constructions.

large amount of overlapping necessitates the use V of approximatelytwice as much material as the area to be covered. Moreover, because ofthe flimsiness and flexibility of the strips, the appli- 20 cation ofthe strips to the sub-structure is awkward and requires a, considerableamount of time and skill in order to properly align them and obtain areasonably acceptable appearance.

In accordance with my invention the panels 2 are preferably composed ofa base of thermoplastic composition board which has considerablemechanical strength, yet is light and rigid. Because of the nature ofthe base, the panels can be made comparatively large in size whereby a30 plurality of staggered rows of brick or other simulating surfaces canbe embossed thereon. The panels thus produced are waterproof andfire-resistant and will satisfactorily resist exposure to the weather.They are easy to handle 35 on account of their stiffness and lightweight and can be applied more rapidly than ordinary strips. Since eachunit is of considerable size, the amount of overlapping is substantiallyreduced thereby effecting a large saving of ma- 40 terial. -The panelsmade in accordance with my invention are embossed and cut in such manneras to create a highly artistic appearance when laid in place.Furthermore, the panels are self-align- 45 ing and can be applied withfacility and speed. The composition boardwhich forms the base materialof my novel product may be prepared from a stock comprising a mixture ofan aqueous dispersion of thermoplastic waterproofing material withaqueous fibrous pulp together with suitable fillers, substantially asdisclosed in Pat- ,ent No. 1,536,399, granted to Lester Kirschbraun May5, 1925, or in the Patent No. 1,785,357 granted to Levin December 16,1930; or the board 55 .may be made from any equivalent waterproof Thethe panel before and after the embossed areas and weather-resistantstock which is capable of being formed into the configuration requiredfor the brick-simulating sheets.

The stock may be sheeted on a wet machine into a web which is thencarried by blankets from 5 the fo ing cylinder to the make-up roll wherea sheet of desired caliper may be built up. When the web has attainedthe desired caliper, it is stripped from the make-up roll and dried. The

peripheral dimensions of the make-up roll are preferably such that thesheet stripped therefrom will be of substantially the size of thedesired panel or a multiple thereof.

The sheet may then be passed through hot calender rolls, or otherwisetreated so as to heat the same to a temperature suficient to cause theparticles of waterproofing material to coalesce and. fuse on the fibers,and form a hard, rigid and thermoplastic board-like structure preferablyof a thickness ranging from .050" to .080". The board is then .placedbetween heated male and female dies and subjected to an embossing andcutting operation whereby the board is formed into a panel of thedesired shape, size and design. The resulting panel is of substantiallyuniform thickness throughout.

Similarly useful sheets may be produced on multi-cylinder machines fromstocks designed to produce rigid as well as mouldable properties. Whenthe production of more highly fireres'istant products is desired,asbestos fiber is emplayed as the sheet-forming stock.

In order to more clearly comprehend the nature of my invention,reference is made to the following description in conjunction with the8.0- companying drawings, of which:--

Figure 1 is a plan view of a siding panel made in accordance with myinvention.

Figure 2 is a cross-section taken on the line 22 of Figurel.

Figure 3' is a cross-section taken on the line 3-3 of Figure l.

Figure 4 is "a cross sectlon taken 4-4 of Figure 1.

Figure 5 is a perspective view of a panel made in accordance with myinvention, a portion being broken away.

Figures 6 and 7 are fragmentary plan views of on the line have beensurfaced.

Figures 8 and 9 are fragmentary front face views illustrating the mannerin which the panels are placed on a wall.

Figure 10 is a fragmentary rear face view lllustrating the manner inwhich the panels are placed on a wall.

Figure 11 is a fragmentary view illustrating the appearance of thepanels when laid in place.

Figure 12 is a cross-section taken on the line I2--I2 of Figure 11.

Figure 13 is a cross-section taken on the line |3-l3 of Figure 11.

Figure 14 is a fragmentary plan view of a slightly different embodimentof the invention.

Referring to the drawings and particularly to Figures 1-7,- the numerall indicates a panel embodying the invention, this panel having a gen- 1erally rectangular shape. Embossed or raised areas shaped to simulatecommon brick are represented by the numeral 2. The raised areas arespaced by areas 3 and 4 in what may be termed the original plane of thepanel and which simulate mortar joints. The size of the brick-simulatingareas 2 preferably corresponds to that of ordinary brick and the groovescorresponding in width to that of ordinary mortar joints. The marginalareas 5 and 6 along the right hand side and top edge are crimped ordepressed along lines 1 and 8 so that they lie in a lower plane than theoriginal plane of the panel, that is, the plane of the areas 3 and 4.The depth of the crimp corresponds substantially to the thickness of theboard. Along the left hand side of the panel are lateral projections 9spaced by recesses or cut-outs Ill. The projections represent thehalf-brick areas in alternate courses extending beyond the nearestmortar joints in the intervening courses when the bricks arestagger-laid in customary fashion. The projections 9 are preferablyedged by narrow marginal areas I I which are on a level with the areas 3and l and also represent mortar joints. Along the right hand side of thepanel, raised areas [4 project laterally in alternating courses, adistance of half a brick-length beyond the crimp line I, but not to theedge of the sheet. These raised areas H are bounded on three sides byportions of the depressed area 5, the latter being adapted to beoverlapped by the projections 9 of a similar panel laid adjacent theretoin the same course.

After the panel has been embossed and cut to the desired shape and size,it is given a prime coating of weather-proofing substance on its upperface. The coating is preferably applied by spraying onto the face of thepanel an aqueous bituminous emulsion; but molten bitumen, such as hotasphalt, may be used in place of the emulsion. This coat serves toincrease the weatherproofing properties of the panel especially alongthe mortar-simulating joints. While the coating is still adhesive, thepanel may, if desired, be surfaced with finely divided solid materialsuch as sand or fine slate, particularly in the regions of the groovesor mortar-simulating joints. If surfacing is not applied to the primecoating, the coating is allowed to dry before the panel is subjected tofurther treatment. The panel is then covered with a stencil, whichexposes only the brick-simulating surfaces, and is again coatedpreferably with a layer of bituminous emulsion. The portions which havereceived a second coating are then surfaced with granular material tosimulate brick of any desired color, such color preferably contrastingwith the color of the mortar-simulating joints.

As an alternative method of application, the bituminous material,particularly the second coat, is applied to the elevated portion of thesheet by means of a coating roll. By passing the sheet with the elevatedportions downward, these surfaces only are covered with the coatingmaterial. The application of grit adheres to the freshly coated sectionleaving the mortar lines free from the grit covering.

Both the primary coating and the secondary coating operations arepreferably effected with an aqueous bituminous dispersion of the typewhich gives a non-flowing film. The resistance to fiow is of greatimportance in the case of fire since the intense heat encountered causesordinary asphalt to flow readily thereby destroying the entire wallsheathing. Advantage is also derived from the greatly improvedweather-resisting properties of the film resulting from the applicationand use of this type of dispersed asphalt.

The resulting panel presents a series of staggered rows ofbrick-simulating surfaces spaced with mortar joints. The panel may varyin size but a convenient size for handling is approximately 25"x 30".

In Figures 8-13, I have shown the manner in which the panels are laid ona side wall. The extensions 9 fit between the embossed areas H of theadjacent panel and overlap the marginal area 5 which has been crimpedbelow the level of the grooves 3 and 4. The outermost edges l6 of theextensions abut the crimp shoulder l. The upper and lower edges of thepanels in each course are respectively aligned. The panels in thesuperjacent course are laid in the same manner but are staggered inrelation to the subjacent course in order to carryout the design scheme.Staggering also avoids having all vertical joints in the same line andhence avoids the likelihood of leaks. The marginal portion I! along thelower edge of the panel, which is in the same plane and of substantiallythe same width as the grooves 3 and 4, overlaps the crimped marginalportions 6 of panels in the course below, the lower edge l8 of the panelabutting the shoulder at the crimp line 8. The portions l2 and I3 arecut out of each panel in order to provide a smooth lap in overlappingrelation. The removal of these portions enables all of thebrick-simulating areas to lie substantially in one plane, and all themortar joint-simulating areas to lie in another plane.

It is apparent from the drawings that the joints between adjacent panelsalways occur along the simulatedmortar joints. This method of joiningeffectively masks the joints so that the completed siding constructionappears to be integral.

The panels are self-aligning since the extensions 9 along one edge ofthe panel fit accurately between the embossed areas ll of the adjacentpanel in the same course and the lower edge l8 of each panel fitsagainst the crimp line 8 of the subjacent panel.

Figure 14 shows a slightly different embodiment of the invention whereinthe mortar-simulating marginal portions at the left and lower edges ofthe panel are trimmed away, the depressed areas 5 and 6 being widened sothat the amount of overlap along the top and sides of each panel isundiminished. When such panels are laid side by side in a course, theedge l9 of each panel abuts the side edge of the depressed portion 5, 6of the panel next to the left in the same course. This properly spacesthe panels.

In addition to acting as a waterproof surface, H

more, the siding is considerably more fire-resistant than that made fromasphalt saturated and coated felted fibrous material.

Because of their rigidity and lightness the panels can be made incomparatively large sizes.

and hence can be laid with greater speed and accuracy than is possiblewith ordinary types of siding construction.

The panels may be embossed with other suitable designs to simulateclapboard, rough stone and other building materials without departingfrom thescope'of the invention. When coated with suitable paints andenamels the product may also be used for interior decoration such astile-simulating walls or design ceilings.

l. A panel comprising an embossed sheet of waterproof fibrous materialof substantially uniform thickness, the weather face of said sheethaving raised areas spaced by intervening depressed areas, a continuouscoating of waterproofing material over the entire weather face of saidpanel, and a discontinuous coating of I waterproofing material on saidcontinuous coating covering and limited to said raised areas.

2. An embossed siding panel having areas in the original plane and otherareas raised above the original plane, extensions along one side edge ofsaid panel at spaced intervals, the opposite side edge having themarginal portion depressed below said original plane.

3. An embossed siding panel having areas in the original plane and otherareas raised above the original plane, the marginal area along thebottom and one side of said panel being in the original plane, themarginal area along the top and other side edge .being depressed below,said original plane.

4. A bituminous composition siding panel em bossed to representbrick-work with areas in the original plane simulating mortar joints andareas raised above the original plane to represent bricks, said panelhaving spaced extensions along one side edge and areas along theopposite side edge depressed below said original plane to be overlaid byextensions on an adjacent panel.

5. A panel comprising a thin rigid sheet of uniform thickness composedof pulp fiber and waterproofing material, said sheet being embossed toform a pattern of several courses of brick-work, a continuous coating ofwaterproofing material covering the weather face of said panel, and adiscontinuous additional coating upon said continuous coating coveringand limited to the raised areas.

6. A panel comprising a sheet of bitumen-saturated felt of substantiallyuniform thickness, saidsheet being embossed so that portions thereof areelevated above the level of other portions thereof in such a manner asto form on the weather face of the sheet a plurality ofvertically-spaced courses raised areas, said raised areas beingvertically and horizontally spaced by lower areas of said sheet, and awaterproof coating of substantial thickness covering and limited to saidspaced raised areas to augment the elevation thereof.

7. A panel comprising a sheet of bitumen-saturated felt of substantiallyuniform thickness, said sheet being embossed so that portions thereofare elevated above the level of other portions in such a manner as toform on the weather face of the sheet a plurality of vertically-spacedcourses of horizontally-spaced raised areas, said raised areas beingvertically and horizontally spaced by lower areas of said sheet, awaterproof coating of substantial thickness covering and limited to saidspacedraised areas to augment the elevation thereof, and granular mattercovering said areas of coating material.

LESTER KIRSCI-IBRAUN.

of horizontally-spaced

